the reason why wallets show no funds is probably either they are not synced yet with the network (downloaded whole blockchain for full node, or download the whole block headers for electron cash). or it is because they are connecting (wrongfully) to bitcoin nodes instead. try manually changing the node they connect to. for example in electron cash you can do it in the Network settings (shortcut: the circle on the bottom right).
the second problem: "transaction rejected by network" is because of the issue with the 2FA in BCC wallets.
there is a workaround: you restore the wallet from your seed and before the end you check disable 2fa, with the restored wallet you can now send bitcoin cash transactions.
the route to restore in your electron cash:
* get your seed from your electrum wallet
* on electron cash go to File -> New/Restore from menu
* choose restore and choose make 2fa wallet, NOT standard
* enter your seed
* when asked to keep or disable, choose DISABLE
* change the server to electroncash.casharia... or electrum.abc
good luck.
edit: and here is my BTC addy if it worked![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
1CRWo1NXQmyUn6u9iJRKbqE4iNSqSFkF6j
the second problem: "transaction rejected by network" is because of the issue with the 2FA in BCC wallets.
there is a workaround: you restore the wallet from your seed and before the end you check disable 2fa, with the restored wallet you can now send bitcoin cash transactions.
the route to restore in your electron cash:
* get your seed from your electrum wallet
* on electron cash go to File -> New/Restore from menu
* choose restore and choose make 2fa wallet, NOT standard
* enter your seed
* when asked to keep or disable, choose DISABLE
* change the server to electroncash.casharia... or electrum.abc
good luck.
edit: and here is my BTC addy if it worked
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
1CRWo1NXQmyUn6u9iJRKbqE4iNSqSFkF6j
Just wanted to thank you Herbert2020 - this trick worked on my wallet that was "stuck" since Aug 1st - I did somehow manage to create a ElectronCash wallet with the old Electrum seed and I saw the BCC and the transactionhistoery of Electrum - but this new wallet was not allowing to send out - but thanx to these simple steps I now managed to do a first send transaction! Just waiting for the netwotk to confirm it
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)